CN106132316A - Retractor - Google Patents
Retractor Download PDFInfo
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- CN106132316A CN106132316A CN201580013662.5A CN201580013662A CN106132316A CN 106132316 A CN106132316 A CN 106132316A CN 201580013662 A CN201580013662 A CN 201580013662A CN 106132316 A CN106132316 A CN 106132316A
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- retractor
- cellulose sponge
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- imbibition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00818—Treatment of the gastro-intestinal system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00898—Material properties expandable upon contact with fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00942—Material properties hydrophilic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B2017/0212—Cushions or pads, without holding arms, as tissue retainers, e.g. for retracting viscera
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
- A61B2017/0225—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery flexible, e.g. fabrics, meshes, or membranes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Materials For Medical Uses (AREA)
Abstract
The present invention provides the burden that in endoscopic surgery etc., can make patient less, and is configured at the retractor near endoceliac target internal organs.It is characterized in that, be the retractor of the operation being made up of imbibition intumescent material, above-mentioned imbibition intumescent material is formed as web-like, and the imbibition intumescent material of above-mentioned web-like carries out expanding by endoceliac imbibition and is launched into plane.
Description
Technical field
The present invention relates to operation is configured at the retractor near target internal organs (surgical object internal organs).
Background technology
In the past, generally the earth incision such as abdominal part, chest was carried out in surgical operation.Therefore, except with cut
Open again, infect beyond the outbreak equivalent risk of disease, also there occurs that patient is the most active, cut pain, post-operative recovery require time for,
Cut the spiritual miseries such as vestige residual.But, in recent years, along with medical skill, medical apparatus and instruments, medical apparatus send out
Exhibition, opens aperture at abdominal part and medical apparatus and instruments (trocar, have another name called trocar) is inserted intraperitoneal, observe monitor, while behaviour
Making medical apparatus, endoscope's (peritoneoscope) operation carrying out performing the operation becomes to come into one's own.By endoscopic surgery, improve surgery
The produced spiritual misery that patient is caused during operation.
In endoscopic surgery, it is desirable to other internal organs becoming the obstacle guaranteeing the visual field are carried out pressure, guarantees target
The visual field of internal organs.Retractor accordingly, as endoscopic surgery, it is proposed that be inserted in body cavity by trocar, by body cavity
Interior expansion and can be by the retractor (for example, referring to patent documentation 1,2) of the internal organs pressure outside target.But, these retractor
In order to support that retractor needs staff in insertion, additionally, it is necessary to open the hole of retractor support on the health of patient.
In order to solve these problems, it is proposed that cut less than the inner chamber of trocar by being dried the cross section obtained with compression forming
Face, possesses the retractor (for example, referring to patent documentation 3) of bar-shaped water swellable material.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2003-164459 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2005-253916 publication
Patent documentation 3: No. 5128672 publications of Japanese Patent Publication No.
Summary of the invention
Invent problem to be solved
Endoscopic surgery is currently also developing, and to reduce the hole opened on patient body, burden is less for patients
Operation as target.Therefore, medical apparatus and instruments, medical apparatus also pursue miniaturization.But, if the cross section of retractor is subtracted
Little, then suppose following such situation.That is, by be dried and compression forming obtain bar-shaped water swellable material by inhaling
The expansion rate that water obtains is limited.Even if result, it is believed that be easily inserted into body cavity, also will not be by expansion subsequently
Become sufficient size for pressure internal organs.
Therefore, it is an object of the invention to provide and make the burden of patient less in endoscopic surgery etc., and be configured at
Retractor near endoceliac target internal organs.
For the method solving problem
In order to reach above-mentioned purpose, the retractor of the present invention is characterised by, is the hands being made up of imbibition intumescent material
The retractor of art, above-mentioned imbibition intumescent material is formed as web-like, and the imbibition intumescent material of above-mentioned web-like is by body cavity
Imbibition carry out expanding and being launched into plane.
Lamellar imbibition intumescent material is rolled into a roll and is formed by the imbibition intumescent material of the most above-mentioned web-like.
The most above-mentioned lamellar imbibition intumescent material through-thickness is compressed by.
The imbibition intumescent material of the most above-mentioned web-like can be expanded to 8 times～the scope of 42 times of coil diameter along volume direction.
The internal organs of target proximity can be lifted by the imbibition intumescent material of the most above-mentioned web-like, pressure.
The effect of invention
According to the present invention it is possible to provide in endoscopic surgery etc., the burden that can make patient is less, and is configured at body
Retractor near the target internal organs of intracavity.
Accompanying drawing explanation
Fig. 1 is the figure of an example of the embodiment of the retractor of the display present invention.Fig. 1 (a) is the retractor of the present invention
Plane graph, Fig. 1 (b) is the axonometric chart observed the transversely side of the retractor shown in Fig. 1 (a), and Fig. 1 (c) is for showing above-mentioned pressure
The plane graph of the state that isostere expands.
Fig. 2 is the schematic diagram of an example of the manufacture method of the retractor of the display present invention.
Detailed description of the invention
For the retractor of the present invention, citing illustrates.But, the present invention does not limits and is limited to following example.
It addition, referring to accompanying drawing be the accompanying drawing schematically recorded, the ratio of the size of the object that accompanying drawing is described etc. is sometimes with existing
The differences such as the ratio of the size of real object.Sometimes at accompanying drawing each other, the dimensional ratios of object etc. are also different.
Fig. 1 shows the retractor 10 that embodiments of the present invention relate to.Fig. 1 (a) is the plane graph of retractor 10, Fig. 1 (b)
For the axonometric chart observed the retractor 10 transversely side shown in Fig. 1 (a), Fig. 1 (c) is the shape that retractor 10 is expanded by display
The plane graph of state.This retractor 10 is the retractor of operation that can be suitable for using in endoscopic surgery etc., swollen by imbibition
Swollen property material is constituted.Above-mentioned imbibition intumescent material is formed as a diameter of D, the web-like of a length of L.The imbibition of above-mentioned web-like expands
Property material can by body cavity, carry out imbibition thus expand and be launched into the plane of length W in the width direction, be configured at
Near target internal organs.Be launched near target internal organs that the retractor of plane prevents near surgical instrument contact target internal organs is dirty
Device, protects the internal organs near above-mentioned target internal organs.Additionally it is possible to lift the internal organs near above-mentioned target internal organs, carry out pressure.
The imbibition intumescent material through-thickness being preferably formed into lamellar is compressed by.Above-mentioned compression can be by inhaling
The dry compression that the dried through-thickness of liquid intumescent material is compressed is carried out.If the lamellar that so have compressed is inhaled
Liquid intumescent material is rolled into a roll and forms retractor, then be launched into by imbibition and plane (revert to plane from web-like
Shape), and expand in a thickness direction.Therefore, even if in the case of the endoceliac hole of insertion is little, it is also possible to easily
Insert retractor, and can be expanded by the earth by imbibition in body cavity, it is possible to the burden making patient is less, and more effectively
The internal organs near above-mentioned target internal organs are protected on ground, are lifted by the internal organs near above-mentioned target internal organs, pressure.
Compression ratio now is preferably less than 20%, and more preferably less than 15%.If such compression ratio, the most permissible
The expansion of excellence is expected by the imparting of moisture.Here, compression ratio (%) is by (being dried the compression direction chi after compression forming
Very little)/(the equidirectional size in the case of not compressing and manufacturing) × 100 calculate.
The expansion multiplying power obtained by imbibition of the retractor 10 that the present invention relates on above-mentioned compression direction be preferably 5 times with
On, particularly in the case of also for the purpose of the lifting efficiently of internal organs, pressure, more preferably more than 10 times.If
Such expansion multiplying power, then can expand the most greatly and protect internal organs well, and effectively lift, pressure.
In the present invention, above-mentioned imbibition intumescent material is preferably the fibers such as cellulose sponge (Cellulose Sponge)
Element porous plastid.This is because cellulose is excellent in terms of the safety to organism.Cellulose sponge is for being dried
The raw material of compression forming, if being dried the cellulose sponge that have compressed to give moisture to this, absorbing water and expanding, therefore from this
It is also preferred material that point sets out.
The cellulose sponge that can be suitable in the present invention using can directly use regenerated cellulose method, cellulose solvent
Cellulose sponge manufactured by the manufacturing process all the time such as solwution method, can enumerate such as, No. 3520511 public affairs of Japanese Patent Publication No.
Cellulose sponge disclosed in report.Specifically, by cellulose is produced as the dissolving pulp of main constituent be added with natural
The viscose glue of fiber.In above-mentioned viscose glue, add neutrality crystallization Natrii Sulfas and mix, making mixture.Said mixture is pressed into
In shaping mould, or discharge slabbing so that it is add thermocoagulation, it is possible to obtain block or sheet-like fiber element sponge.Additionally, cellulose is extra large
In silk floss, as reinforcing fiber, comprise cotton (cotton), Caulis et Folium Lini, Boehmeria, pulp the most alone or in combination, by comprising these
Reinforcing fiber thus intensity as sponge increase, and can suppress velveteen (lint), and postoperative can press down when trocar takes out
The breakage of retractor processed, come off.
As commercially available cellulose sponge, it is possible to use eastern beautiful cellulose sponge (east レ Off ァ イ Application ケ ミ カ Le (strain)
System, trade name) etc..This cellulose sponge blank is the most block-shaped, can form they cuttings or stamping-out as this
The size of the cellulose sponge that the imbibition intumescent material in bright uses.
Cellulose sponge possesses water absorption due to cellulose itself, is therefore made without giving the special of water absorbing properties
Post-treatment etc., it is possible to the risk management of the safety of the medicament suppress to be increased by post-treatment operation, being used for post-treatment is drawn
The cost risen increases.Additionally, cellulose sponge less generation velveteen, operability during operation is excellent, right further as having
Recovery at the end of therefore the extremely few such characteristic of the adhesion of cut tissue performs the operation is the easiest.Additionally, due to possess imbibition
Dilatancy, therefore sandwiches between the internal organs of surgical object and the internal organs near it when surgical operation, as being used for guaranteeing operation
When wild retractor uses, can also have the effect such as absorption of the protection of internal organs and blood, body fluid simultaneously.
The imbibition intumescent material of above-mentioned web-like can also use and be formed for the material into web-like, such as Fig. 2 from initially starting
Shown in, the material that the imbibition intumescent material being preferably formed into lamellar is rolled into a roll and is formed.Further preferably will be formed
After the thickness direction compression of the imbibition intumescent material of lamellar, it is preferably formed into web-like.By so being formed such that it is able to
Volume after making to be impregnated with normal saline etc. is bigger, for being in a ratio of with the conventional imbibition intumescent material only compressed
1.5～2.5 times.In endoscopic surgery, the shape of the retractor that may be inserted into, external diameter are arranged by the internal diameter of trocar, therefore lead to
Cross and retractor little for diameter when inserting is launched in body cavity in bigger region, such that it is able to the build of suppression patient
Limit, the most preferably.Additionally, in the case of determining the volume needed for endoceliac retractor, the retractor before insertion
Trocar path can be expected to alleviate the postoperative burden of patient, the most preferably by size hour.Such as, if making body
The volume (necessary sized) of the retractor of intracavity is vertical 300mm, horizontal 80mm, thick 8mm, then, during compression forming, what compression obtained cuts
Face shape is defined as tetragon, even being therefore compressed into by horizontal 80mm as 1/10 near the limit of compression, for horizontal 8mm
In the case of, the diagonal of its compression cross section (tetragon) is also 11.3mm.On the other hand, in the pressure making above-mentioned necessary sized
In the case of the bodily form becomes web-like, thick 8mm can be compressed into 1/10～1/11, be to be formed as volume after 0.8～0.7mm thickness
Shape, the cross section after therefore volume is formed becomes toroidal, it is possible to be formed as 7.5mm φ, it is possible to obtain greater compactness of form.
So, in the case of being used as lamellar imbibition intumescent material by cellulose sponge, cellulose sponge is preferred
It is in the range of 15～3mm for the thickness when being impregnated with normal saline etc., more preferably 10～the scope of 5mm
In.Thickness after being dried compression during if the thickness of this thickness range, the most such as 9mm can be the scope of 0.7～0.6mm
In, the thickness after being dried compression during the thickness of 5mm can be, in the range of 0.5～0.4mm, can to make operation when being rolled into a roll
Property is good.
Formed owing to this retractor is rolled into a roll, the moulds such as resin mold therefore can be used to be entered by this imbibition intumescent material
Row immobilization.Therefore, the cross sectional shape of this mould is obtained in that the insertion of tetragon, polygon, circle, C-shaped, spill etc. and trocar
The diversified cross sectional shape of the form fit in hole.
It is being formed into the retractor of web-like in body cavity, in the case of dropping normal saline etc. makes it expand, no matter is dripping
It is added on which position of retractor, as long as keeping the moisture of necessary amount just can expand into lamellar one from the roll-shape formed
Limit is launched at leisure.Therefore, the restriction in direction when being not inserted into, the size before being formed can be reverted to.For making it at body
The retractor (rolled up after compression before being compression in the case of being formed) before as long as the amount of the normal saline of intraluminal inflation is formed with volume
The water quantities of the identical volume weight part of volume, if giving its above moisture, retractor can not absorb, therefore
The most preferred.Additionally, the retractor of the present invention can become thin lamellar, therefore, it is possible to the narrow place between internal organs is inserted and protects
Protect, or fold and partly increase thickness, it is thus achieved that lift effect etc., it is possible to carry out pressure according to internal situation.
Additionally, postoperative retractor is expanded to 8 times～42 of preoperative coil diameter D along volume direction (direction of the W in Fig. 1)
Times scope, when therefore this retractor being taken out, it is also possible to cut growth strip taking out in the way of less than the internal diameter of trocar.
Now, retractor longitudinally, laterally, in the case of thickness direction tensile strength difference, in advance, when processing retractor, logical
Crossing the direction making tensile strength high is length direction etc., suppresses the destruction of retractor when taking out, separation etc., such that it is able to formed
The retractor of safer form.
Such as, in the case of being made sheet by bulk fibers element sponge, if extrusion direction is set to Z-direction, then exist
In manufacturing process, on a direction in the direction orthogonal with this Z-direction, tensile strength diminishes sometimes.The direction is being set
For Y direction, when the direction orthogonal with Z-direction and Y direction is set to X-direction, if Y direction is set to thickness,
Become the sheet of stretch-proof.The tensile strength measured value of bulk fibers element sponge, such as, X-direction is 9～17N/cm2, Y-axis side
To for 4～9N/cm2, Z-direction is 9～18N/cm2.Now, tensile strength is, prepares the test film 10 of 7cm × 2cm × 1cm
More than individual, use Tensilon universal testing machine, using the direction of above-mentioned 7cm as stretching direction of principal axis with chuck spacing 5cm
Carry out tension test, measure tensile strength (N/cm2), be averaged obtained by value.
Additionally, the retractor of the present invention can also have x-ray imaging line.As long as x-ray imaging line can obtain radiography effect
Really, it is possible to be configured at any position of retractor, but preferred disposition in internal organs contact few part.For example, it is preferable to
The end of planar portions, lateral parts are configured to lamellar or wire, the length direction that more preferably winding when winding sponge terminates
Configuration.About the configuration space of x-ray imaging line, if can obtain contrasting effects then what kind of interval can, but more preferably
For being all arranged in the length direction of volume with solid line shape.
As x-ray imaging line, if using the heat fused resin strand body of X-ray non-permeable, then can pass through
Heat fused makes it be attached to retractor.As the heat fused resin strand of X-ray non-permeable, can enumerate such as, poly-third
Alkene system resin is mixed with the monofilament of barium sulfate or multifilament, is mixed with the strand body etc. of the vinyl chloride resin of barium sulfate.
Embodiment
(embodiment 1)
Prepare bulk fibers element sponge.Specifically, interpolation is produced by using cellulose as the dissolving pulp of main constituent
There is the viscose glue of natural fiber, add neutrality crystallization Natrii Sulfas to above-mentioned viscose glue and mix, producing mixture.By said mixture pressure
Enter in shaping mould so that it is add thermocoagulation, it is thus achieved that bulk fibers element sponge.The bulk fibers element sponge of gained is cut into thin slice
Shape, carries out punch press process, makes the fibre of the lamellar of 120mm (width) × 180mm (length direction) × 3mm (thickness direction)
Dimension element sponge so that it is be dried, it is thus achieved that be dried cellulose sponge.
By above-mentioned dry cellulose sponge, make length direction be length direction, coiling direction be width, to become rod
The mode of shape is rolled into a roll.Then, in the resin mold of the tubulose putting into the internal diameter φ 9mm with C-shaped cross section, by cellulose sea
The part that silk floss exposes is added a cover with the resin mold being processed into arc, fixes in the way of lid does not falls down.Will be equipped with above-mentioned rolled
The resin mold of the cellulose sponge of shape is put 1 hour, after taking-up in the drying machine of 60 DEG C, at room temperature lets cool more than 1 hour, from
Resin mold takes out, it is thus achieved that web-like retractor.It is diameter 10.8mm by above-mentioned web-like retractor size when resin mold takes out
φ (maximum), the multiplying power launched along coiling direction is 11 times, and face shaping is web-like.
(embodiment 2)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 180mm (length direction)
The cellulose sponge of the lamellar of × 7mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.6mm (maximum), and compression ratio is 8.6%.
By above-mentioned compressed cellulose sponge, make length direction be length direction, coiling direction be width, to become rod
The mode of shape is rolled into a roll.Then, in the resin mold of the tubulose putting into the internal diameter φ 9mm with C-shaped cross section, by cellulose sea
The part that silk floss exposes is added a cover with the resin mold being processed into arc, fixes in the way of lid does not falls down.Will be equipped with above-mentioned rolled
The resin mold of the cellulose sponge of shape is put 1 hour, after taking-up in the drying machine of 60 DEG C, at room temperature lets cool more than 1 hour, from
Resin mold takes out, it is thus achieved that web-like retractor.It is diameter 9.7mm φ by above-mentioned web-like retractor size when resin mold takes out
(maximum), the multiplying power launched along coiling direction is 12 times, and face shaping is web-like.
(embodiment 3)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 180mm (length direction)
The cellulose sponge of the lamellar of × 5mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.5mm (maximum), and compression ratio is 10.0%.
Method similarly to Example 2 is used to be rolled into a roll and be dried above-mentioned compressed cellulose sponge, it is thus achieved that
Web-like retractor.It is diameter 10.3mm φ (maximum) by above-mentioned web-like retractor size when resin mold takes out, along winding
The multiplying power that direction is launched is 12 times, and face shaping is web-like.
(embodiment 4)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 300mm (length direction)
The cellulose sponge of the lamellar of × 7mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.6mm (maximum), and compression ratio is 8.6%.
Method similarly to Example 2 is used to be rolled into a roll and be dried above-mentioned compressed cellulose sponge, it is thus achieved that
Web-like retractor.It is diameter 10.1mm φ (maximum) by above-mentioned web-like retractor size when resin mold takes out, along winding
The multiplying power that direction is launched is 12 times, and face shaping is web-like.
(embodiment 5)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 300mm (length direction)
The cellulose sponge of the lamellar of × 5mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.5mm (maximum), and compression ratio is 10.0%.
Method similarly to Example 2 is used to be rolled into a roll and be dried above-mentioned compressed cellulose sponge, it is thus achieved that
Web-like retractor.Above-mentioned web-like retractor size when resin mold takes out is diameter 10.9mm φ (maximum), along winding side
Being 11 times to the multiplying power launched, face shaping is web-like.
(embodiment 6)
The block cellulose sponge of cutting, carries out punch press process, makes 150mm (width) × 180mm (length direction)
The cellulose sponge of the lamellar of × 5mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.5mm (maximum), and compression ratio is 10.0%.
Method similarly to Example 2 is used to be rolled into a roll and be dried above-mentioned compressed cellulose sponge, it is thus achieved that
Web-like retractor.It is diameter 10.0mm φ (maximum) by above-mentioned web-like retractor size when resin mold takes out, along winding
The multiplying power that direction is launched is 15 times, and face shaping is web-like.
(embodiment 7)
The block cellulose sponge of cutting, carries out punch press process, makes 100mm (width) × 300mm (length direction)
The cellulose sponge of the lamellar of × 7mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.6mm (maximum), and compression ratio is 8.6%.
Method similarly to Example 2 is used to be rolled into a roll and be dried above-mentioned compressed cellulose sponge, it is thus achieved that
Web-like retractor.It is diameter 10.0mm φ (maximum) by above-mentioned web-like retractor size when resin mold takes out, along winding
The multiplying power that direction is launched is 10 times, and face shaping is web-like.
(embodiment 8)
The block cellulose sponge of cutting, carries out punch press process, make 80mm (width) × 250mm (length direction) ×
The cellulose sponge of the lamellar of 9mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that pressure
Shrinkage fibers element sponge.The thickness of above-mentioned compressed cellulose sponge is 0.6mm (maximum), and compression ratio is 6.7%.
Method similarly to Example 2 is used to be rolled into a roll and be dried above-mentioned compressed cellulose sponge, it is thus achieved that
Web-like retractor.It is diameter 10.6mm φ (maximum) by above-mentioned web-like retractor size when resin mold takes out, along winding
The multiplying power that direction is launched is 8 times, and face shaping is web-like.
(embodiment 9)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 180mm (length direction)
The cellulose sponge of the lamellar of × 7mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.6mm (maximum), and compression ratio is 8.6%.
By above-mentioned compressed cellulose sponge, make length direction be length direction, coiling direction be width, to become rod
The mode of shape is rolled into a roll.Then, (enforcement is not used in the resin mold of the tubulose putting into the internal diameter φ 9mm with C-shaped cross section
The lid of arc used in example 2).The resin mold that will be equipped with the above-mentioned cellulose sponge being rolled into a roll is put in the drying machine of 60 DEG C
1 hour, after taking-up, at room temperature let cool more than 1 hour, take out from resin mold, it is thus achieved that web-like retractor.By above-mentioned web-like pressure
Isostere size when resin mold takes out is diameter 9.7mm φ (maximum), and the multiplying power launched along coiling direction is 12 times, outward appearance
It is shaped as web-like.
(embodiment 10)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 180mm (length direction)
The cellulose sponge of the lamellar of × 7mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.6mm (maximum), and compression ratio is 8.6%.
By above-mentioned compressed cellulose sponge, make length direction be length direction, coiling direction be width, to become rod
The mode of shape is rolled into a roll.Then, in the resin mold of the tubulose putting into the internal diameter φ 9mm with circular cross-section, at 60 DEG C
Put in drying machine 1 hour, after taking-up, at room temperature let cool more than 1 hour, take out from resin mold, it is thus achieved that web-like retractor.Will
Above-mentioned web-like retractor size when resin mold takes out is diameter 9.8mm φ (maximum), the multiplying power launched along coiling direction
Being 12 times, face shaping is web-like.
(embodiment 11)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 180mm (length direction)
The cellulose sponge of the lamellar of × 5mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.5mm (maximum), and compression ratio is 10.0%.
By above-mentioned compressed cellulose sponge, make length direction be length direction, coiling direction be width, to become rod
The mode of shape is rolled into a roll.Then, put into the internal diameter φ 8mm with C-shaped cross section tubulose resin mold in after, use with
The same method of embodiment 2 is dried, it is thus achieved that web-like retractor.By above-mentioned web-like retractor chi when resin mold takes out
Very little for diameter 8.7mm φ (maximum), the multiplying power launched along coiling direction is 14 times, and face shaping is web-like.
(embodiment 12)
The block cellulose sponge of cutting, carries out punch press process, makes 100mm (width) × 300mm (length direction)
The cellulose sponge of the lamellar of × 7mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.6mm (maximum), and compression ratio is 8.6%.
Method similarly to Example 11 is used to be rolled into a roll and be dried above-mentioned compressed cellulose sponge, it is thus achieved that
Web-like retractor.It is diameter 8.6mm φ (maximum) by above-mentioned web-like retractor size when resin mold takes out, along winding side
Being 12 times to the multiplying power launched, face shaping is web-like.
(embodiment 13)
The block cellulose sponge of cutting, carries out punch press process, makes 100mm (width) × 150mm (length direction)
The cellulose sponge of the lamellar of × 5mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.5mm (maximum), and compression ratio is 10.0%.
By above-mentioned compressed cellulose sponge, make length direction be length direction, coiling direction be width, to become rod
The mode of shape is rolled into a roll.Then, put into the internal diameter φ 7mm with C-shaped cross section tubulose resin mold in after, use with
The same method of embodiment 2 is dried, it is thus achieved that web-like retractor.By above-mentioned web-like retractor chi when resin mold takes out
Very little for diameter 10.0mm φ (maximum), the multiplying power launched along coiling direction is 10 times, and face shaping is web-like.
(embodiment 14)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 180mm (length direction)
The cellulose sponge of the lamellar of × 3mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.3mm (maximum), and compression ratio is 10.0%.
By above-mentioned compressed cellulose sponge, make length direction be length direction, coiling direction be width, to become rod
The mode of shape is rolled into a roll.Then, put into the internal diameter φ 4mm with C-shaped cross section tubulose resin mold in after, use with
The same method of embodiment 2 is dried, it is thus achieved that web-like retractor.By above-mentioned web-like retractor chi when resin mold takes out
Very little for diameter 4.8mm φ (maximum), the multiplying power launched along coiling direction is 25 times, and face shaping is web-like.
(embodiment 15)
The block cellulose sponge of cutting, carries out punch press process, makes 120mm (width) × 460mm (length direction)
The cellulose sponge of the lamellar of × 3mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.3mm (maximum), and compression ratio is 10.0%.
By above-mentioned compressed cellulose sponge, make length direction be width, coiling direction be length direction, to become rod
The mode of shape is rolled into a roll.Then, put into the internal diameter φ 11mm with C-shaped cross section tubulose resin mold in after, use
Method similarly to Example 2 is dried, it is thus achieved that web-like retractor.By above-mentioned web-like retractor when resin mold takes out
A size of diameter 11.0mm φ (maximum), the multiplying power launched along coiling direction is 42 times, and face shaping is web-like.
(embodiment 16)
The block cellulose sponge of cutting, carries out punch press process, makes 150mm (width) × 180mm (length direction)
The cellulose sponge of the lamellar of × 5mm (thickness direction) so that it is be dried, be compressed at 130 DEG C in a thickness direction, it is thus achieved that
Compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is 0.5mm (maximum), and compression ratio is 10.0%.
By above-mentioned compressed cellulose sponge, make length direction be width, coiling direction be length direction, to become rod
The mode of shape is rolled into a roll.Then, put into the internal diameter φ 9mm with C-shaped cross section tubulose resin mold in after, use with
The same method of embodiment 2 is dried, it is thus achieved that web-like retractor.By above-mentioned web-like retractor chi when resin mold takes out
Very little for diameter 10.1mm φ (maximum), the multiplying power launched along coiling direction is 18 times, and face shaping is web-like.
(comparative example 1)
Bulk fibers element sponge is cut into flake, carries out punch press process, produce 8mm (width) × 300mm
The cellulose sponge of the lamellar of (length direction) × 80mm (thickness direction).Above-mentioned lamellar cellulose sponge is made to be dried, at thickness
It is compressed at 130 DEG C on direction, it is thus achieved that compressed cellulose sponge.The thickness of above-mentioned compressed cellulose sponge is that 8mm is (maximum
Value), compression ratio is 10.0%, the cornerwise a length of 11.3mm of compression cross section (width 8mm × compression direction 8mm),
The multiplying power that through-thickness launches is 10 times, and face shaping is quadrangular.
[table 1]
[table 2]
As known from the above, in an embodiment, even if in the case of sectional area is little, it is also possible to obtain wide model can be launched into
Retractor as the area enclosed.Even having the retractor of the coil diameter of equal extent, it is possible to have the chi after expansion
Very little change.Thus can preparing, even if diminishing for the hole being inserted in the patient to reduce the burden of patient, also can
In body cavity, become the retractor of desired size, can effectively carry out protection and the act of internal organs near target internal organs
Rise, pressure.Understanding on the other hand, in a comparative example, owing to being only capable of launching the share that pair cross-section have compressed, therefore retractor is big
Little (developed area) is limited by hole size.
It addition, the characteristic of the above-mentioned compressed cellulose sponge obtained in embodiment and comparative example and web-like retractor utilize with
Lower method is determined.
[thickness of compressed cellulose sponge]
Use slide gauge measures the thickness of the planar section 4 of compressed cellulose sponge, calculates meansigma methods, maximum
Value.Above-mentioned compressed cellulose sponge prepares 3～5.
[compression ratio of compressed cellulose sponge]
The maximum of the thickness of compressed cellulose sponge is set to TB, and the thickness of the sheet-like fiber element sponge before compression is set to
TA, is calculated by following formula.Measured value, for preparing sample 3～5, has carried out average.
Compression ratio (%)=(TB/TA) × 100
[cornerwise length of compressed cellulose sponge]
Use slide gauge to measure the diagonal compressing cross section of compressed cellulose sponge (comparative example 1), calculate maximum
Value.Above-mentioned compressed cellulose sponge prepares 3～5.
[face shaping of compressed cellulose sponge]
Visualization compressed cellulose sponge, it is thus identified that face shaping.
[diameter of web-like retractor]
Use slide gauge to measure diameter at the two ends of web-like retractor and the 3 of central authorities, calculate meansigma methods, maximum.
Above-mentioned web-like retractor prepares 3～5.
[multiplying power launched along coiling direction of web-like retractor]
The maximum of the coil diameter of web-like retractor is set to Dmax, and the stamping-out in the direction of winding sheet-like fiber element sponge adds
Length after work is set to W, following formula calculate.Measured value, for preparing sample 3～5, has carried out average.
Multiplying power (the again)=W/Dmax launched along coiling direction
[face shaping of web-like retractor]
Visualization web-like retractor, it is thus identified that face shaping.
Above, as the concrete example of embodiment, enumerate the endoscope-use retractor explanation present invention, but the pressure of the present invention
Body is not only limited to the retractor described in these concrete examples, it is possible to for various forms.Such as, the retractor of the present invention also may be used
To be suitable for operation etc. in abdominal operation, pelvis.
The explanation of symbol
10 retractor
The diameter of D retractor
The length of L retractor
W width length (length of coiling direction).
Claims (5)
1. a retractor, it is characterised in that be the retractor of the operation being made up of imbibition intumescent material,
Described imbibition intumescent material is formed as web-like,
The imbibition intumescent material of described web-like carries out expanding by endoceliac imbibition and is launched into plane.
Retractor the most according to claim 1, the imbibition intumescent material of described web-like is by lamellar imbibition dilatancy material
Material is rolled into a roll and is formed.
Retractor the most according to claim 2, described lamellar imbibition intumescent material through-thickness is compressed by.
4., according to the retractor described in any one of claims 1 to 3, the imbibition intumescent material of described web-like can be along volume direction
It is expanded to 8 times～the scope of 42 times of coil diameter.
5., according to the retractor described in any one of Claims 1 to 4, the imbibition intumescent material of described web-like can be attached by target
Near internal organs lift, pressure.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-103701 | 2014-05-19 | ||
| JP2014103701 | 2014-05-19 | ||
| PCT/JP2015/064042 WO2015178311A1 (en) | 2014-05-19 | 2015-05-15 | Excluder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106132316A true CN106132316A (en) | 2016-11-16 |
Family
ID=54553983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580013662.5A Pending CN106132316A (en) | 2014-05-19 | 2015-05-15 | Retractor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170150954A1 (en) |
| EP (1) | EP3146906A4 (en) |
| JP (1) | JPWO2015178311A1 (en) |
| KR (1) | KR20170007725A (en) |
| CN (1) | CN106132316A (en) |
| WO (1) | WO2015178311A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3488790A4 (en) * | 2016-07-25 | 2020-03-11 | Osaka City University | Retractor for small-incision endoscopic surgery |
| JP6967208B1 (en) * | 2020-08-24 | 2021-11-17 | 国立大学法人大阪大学 | Exclusion body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992001433A1 (en) * | 1990-07-24 | 1992-02-06 | Inbae Yoon | Multifunctional devices for endoscopic surgical procedures |
| JP2009089900A (en) * | 2007-10-09 | 2009-04-30 | Toray Fine Chemicals Co Ltd | Member for exclusion in surgery |
| CN101917922A (en) * | 2007-12-28 | 2010-12-15 | 学校法人日本医科大学 | Organ spacer for scope-assisted surgery |
| CN102791202A (en) * | 2010-03-08 | 2012-11-21 | 川本产业株式会社 | Surgical retractor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961629A (en) * | 1968-06-11 | 1976-06-08 | American Cyanamid Company | Using hydrophilic polyurethane laparotomy sponges |
| US4159719A (en) * | 1977-05-09 | 1979-07-03 | Xomed, Inc. | Moisture-expandable ear wick |
| JP4033327B2 (en) | 2001-11-30 | 2008-01-16 | 株式会社八光 | Retractor |
| JP2005253916A (en) | 2004-03-10 | 2005-09-22 | Shigehisa Yanagimoto | Balloon type supporting forceps using carbon dioxide injection for abdominal surgery with small visual field such as laparoscopy, extrasomatic method or the like |
| EP2332469B1 (en) | 2008-09-01 | 2015-05-27 | Kawamoto Corporation | Endoscope excluder |
| WO2012087112A1 (en) * | 2010-12-21 | 2012-06-28 | Erasmus University Medical Center Rotterdam | Expandable retractor for minimally invasive surgery and a method of manufacturing the same |
-
2015
- 2015-05-15 KR KR1020167022733A patent/KR20170007725A/en unknown
- 2015-05-15 JP JP2016521077A patent/JPWO2015178311A1/en active Pending
- 2015-05-15 WO PCT/JP2015/064042 patent/WO2015178311A1/en active Application Filing
- 2015-05-15 US US15/309,502 patent/US20170150954A1/en not_active Abandoned
- 2015-05-15 EP EP15796741.5A patent/EP3146906A4/en not_active Withdrawn
- 2015-05-15 CN CN201580013662.5A patent/CN106132316A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992001433A1 (en) * | 1990-07-24 | 1992-02-06 | Inbae Yoon | Multifunctional devices for endoscopic surgical procedures |
| JP2009089900A (en) * | 2007-10-09 | 2009-04-30 | Toray Fine Chemicals Co Ltd | Member for exclusion in surgery |
| CN101917922A (en) * | 2007-12-28 | 2010-12-15 | 学校法人日本医科大学 | Organ spacer for scope-assisted surgery |
| CN102791202A (en) * | 2010-03-08 | 2012-11-21 | 川本产业株式会社 | Surgical retractor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170007725A (en) | 2017-01-20 |
| US20170150954A1 (en) | 2017-06-01 |
| EP3146906A4 (en) | 2017-11-22 |
| JPWO2015178311A1 (en) | 2017-04-20 |
| EP3146906A1 (en) | 2017-03-29 |
| WO2015178311A1 (en) | 2015-11-26 |
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Application publication date: 20161116 |